Teeth-cleaning device



- Oct. 4,1927.

E. L. CHOTT TEETH CLEANING DEVICE Fil ed Sept. 21. 1925 n $2 ll ldzwardL- patented a. 4. 1927. l I

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OFCHICAGQ, ILLINOIS". 1 1 i TEETH-CLEANING nEvrcn. I

aApplicationfiledrSepte-mber-21,1925. Serial nojszaasa My invention relates to improvements in teeth cleaning devices, .adaptedtespecially to be used by dentists and to be'operated by the conventional dental. engines for cleaning and polishing theteeth,. and myinvention hasfon its object the provisionof an v improved construction oftliis' character which ishighly efficient l1 'l :1lSei -.nCl capable.

ofvery economical manufacture.

ther objects will appear hereinafter.

The invention consists in the combinations. and arrangements: of: parts-hereinafter :le.

scribed and claimed.

V The invention will bebest understood by .15 referencev to the accompanying. drawings forming a part/of this specification, andin which, Y

Fig.1 represents an enlarged central longitudinal section through an instrument made in accordance with my present invention,

Fig. 2 is a side elevational view of the instrument, Fig. 3 is a side elevational view of the mandrel with a part thereof shown in section,

Fig. t represents an enlarged plan view of the top end of the mandrel,

Fig. 5 represents a top plan view-of a mold body, fractionally shown, the same being illustrated as containing a number of my improved instruments as vulcanized therein, and V Fig. 6 represents a fragmentary section of the mold body, showing my improved instruments as vulcanized therein, and further showing base and top members applied thereto.

The preferred embodiment of 'my invenso tion, as illustrated in the accompanying drawing, comprises a rod-like mandrel 7 which is adapted to have one end inserted within and secured to the usual mandrel holder of the flexible shaft on the conventional dental engine. The opposite end of the mandrel, herein shown to be the top end thereof, is provided with a central bore 8;.

and struck from the wall defining this bore are interval-spaced jutting parts 9 which are bent laterally as shown. In view of the provision of these interval-spaced laterally directed jutting parts, theremainder of the wall around the bore 8 consists of intervalspaced jutting parts 10 which are directed aria-11y oflthemandrell. In practicefthe central bore having been drilled out or other-wise produced, thejjutting .parts be rapidly and inexpensively produced by means .of ai-suitable punch and die mechanism. 1

on the end; of the mandrel, my next steptis, to mold, compress and vulcanizethe contact; p ece or. polishing member: 11-. about the .jut-

ting parts and upon the mandrel. For this purpose I'preferably employ a mold body 12 inv which is provided :a bore suitable j 160 'Havuig; thus produced the jutting parts.

for thereception of'the mandrel 7, and 'a matrix lt'with which said bore. 13 has @8113;

tral communication Tliefbore. 13. isof; less: length than the mandrel 7 so thatj'whenflthe mold body 12 is placed on a base plate 1 5,v

16 is applied to the mold body, the said top w A member being provided with a boss 17 depending therefrom, and of a form necessary to produce the desired inner contour of the. cup shaped contact piece 11. Upon the application of pressure to the top member 16,

the depending boss 17 compresses the raw rubber material into the bore 8, about the jutting parts 9 and 1-0 and also upon that portion of theimandrel which projects into I top member '16 properly clamped thereto (clamping means not shown) is placed in a suitable vulcanizer where the temperature is raised to the point necessary for vulcanizing the contact piece about the jutting parts and upon the mandrel. j The mold body is preferably made witha large number of bores and matrices for the accommodation at one time of a large number of mandrels. By makingthe mold body V v precise details of construction set forth, but desire to avail myself of such variations and ture may be effectually reducedsojthat it will accommodate a battery of mandrels at one time, thecost of manufac- Thepolishing instruments of the present invention may be manufactured andlmarketed so cheaply thatJdentists can Well afford to use a fresh polishing instrument on each 'onepatient to another.-=

variation andmodification Without departcompressed and vulcanized about said jutting parts andwithin said bore to the bottom thereof and embedding the same therein, substantially as described.

2. device ofthe class described compris ing a mandrel; axial and lateral jutting parts provided thereon; a bore in one end of said mandrel; said jutting parts being bent from the Wall, defining said bore and a rubber contact piece. compressed andvulcanized upon said mandrel and Within said "bore for embedding therein said axial and Iing from thespirit of the invention. I,

'therefore,wdo not Wish to be limited to the lateral V jutting parts and said bore, substantially as described. v

'3. A device of'the class described comprising a mandrel provided with a bore in one end thereof; parts juttingly bent from the Wall defining said bore; and a rubber con modifications as come within the scope ofthe' appended claims.

Having described my invention, what I,

claim as new and desire to secure by Letters said rubber contact piece fixed to said mandrel for rotation therewith, substantially as described. I

Patent is 1 prising a mandrel; jutting parts at one end said jutting parts being bent from the yvall defin ng, said bore and a rubbercontactp ecel 1. A device of the class described com.

' thereof; a 'borein, one end of said mandrel,

tact piece compressed andvulcanizedupon the end of the mandrel containing said bore and Within said boreiand embedding therein said jutting parts and said bore'for holding In testimony whereof I have signed my name to this specification.

EDWARD L. fcHorT;

ii I 

